Battery Unit Partition Plate for Isolated Heat Dissipation
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Solution Overview
Problem
Densely packed battery cells in battery units are prone to explosions due to internal temperature increases, leading to chain explosions and reduced heat dissipation efficiency, making it difficult to prevent secondary accidents and increasing repair costs.
Innovation Solution
A battery unit design with a partition plate that divides the heat dissipation space into separate regions, using a lower housing with support recesses and circulation holes, and an upper housing with removal regions, to isolate battery cells and prevent thermal interference, allowing for independent heat dissipation and minimizing the risk of chain explosions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If battery cells are densely packed to increase energy density, then productivity and space utilization are improved, but heat dissipation efficiency deteriorates and the risk of chain explosions increases
Solution Approach 1:
The battery housing is divided into multiple isolated heat dissipation spaces using partition walls, with each space corresponding to a battery cell. This segmentation prevents heat transfer between adjacent cells while maintaining dense packing, thus resolving the contradiction between high energy density and effective heat dissipation.
2Area of stationary object
If battery cells are densely packed, then space utilization is improved, but when one cell explodes, chain explosions of adjacent cells cannot be prevented
Solution Approach 1:
Partition walls create isolated heat dissipation spaces for each battery cell, physically separating them. This segmentation ensures that when one cell explodes, the explosion cannot propagate to adjacent cells, thus maintaining high space utilization while preventing chain explosions.
Solution Approach 2:
The partition walls act as intermediary barriers between adjacent battery cells. These walls with communication holes allow controlled heat dissipation while blocking the propagation of explosions, serving as a mediator that maintains both safety and space efficiency.
3Temperature
If a cooling structure is provided for temperature control, then thermal management is improved, but when a cell explodes due to cooling failure, secondary accidents cannot be prevented
Solution Approach 1:
The cooling structure incorporates partition walls that segment the heat dissipation space into isolated compartments. Each compartment has its own communication holes for heat dissipation. This segmentation ensures that thermal management is maintained while preventing secondary accidents from propagation, as explosions in one compartment cannot affect others.
4Temperature
If heat is generated in a specific battery cell, then local heating occurs, but heat transfers to adjacent cells reducing overall dissipation efficiency
Solution Approach 1:
Partition walls with communication holes serve as intermediaries between battery cells. The communication holes allow heat to dissipate from each cell independently through controlled pathways, preventing heat transfer to adjacent cells. This maintains overall heat dissipation efficiency even when local heating occurs in specific cells.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The separated heat dissipation space effectively prevents thermal interference between battery cells, minimizing the risk of chain explosions and reducing heat transfer, thereby enhancing safety and efficiency by allowing each cell group to dissipate heat independently.
Implementation Method 1
a plurality of circulation holes communicating with the outside are formed in a region except for a region the plurality of support recesses are formed
Implementation Method 2
a partition plate inserted into a space formed between the plurality of support recesses formed in the lower housing to divide the plurality of battery cells inserted into the plurality of support recesses into predetermined rows and columns
Data Source
AI summary
Proposed is a battery unit in which a plurality of cylindrical battery cells, each of which has an upper surface provided with a positive electrode and a negative electrode, are mounted in rows and columns, the battery unit including a lower housing in which a plurality of support recesses which support the plurality of battery cells are formed in rows and columns and a plurality of circulation holes communicating with the outside are formed, an upper housing coupled to the lower housing and having a plurality of straight removal regions; an electrode network provided on an upper surface of the upper housing and provided as a plurality of busbars connected to the positive electrodes of the plurality of battery cells; and a partition plate inserted into a space formed between the plurality of support recesses to divide the plurality of battery cells into predetermined rows and columns.